A low temperature process for the application of three‐layer polyethylene coatings
Abstract
Purpose
The purpose of this paper is to report the investigation of a low temperature application process for three‐layer polyethylene coating (3LPE) at 185‐195°C to meet the requirement of the coating temperature for X80 longitudinally welded pipe.
Design/methodology/approach
Plant coating and laboratory tests were performed to determine the properties of 3LPE coating coated at 185‐195°C.
Findings
The properties of the 3LPE coating, which was applied by using a suitable low temperature cured epoxy powder at temperature of 185‐195°C, were nearly the same as those of a 3LPE coating that had been applied at the normal coating temperature (200‐230°C).
Originality/value
Recommended acceptance criteria for 3LPE coatings applied at 185‐195°C are proposed. The research results met the requirements for external anti‐corrosion properties for X80 longitudinally welded pipe.
Keywords
Citation
Huai Qi, S., Qi Bin, Z., Wen Li, H., Bei Bei, X., Zhong Ping, X. and Gui Bai, H. (2011), "A low temperature process for the application of three‐layer polyethylene coatings", Anti-Corrosion Methods and Materials, Vol. 58 No. 6, pp. 312-314. https://doi.org/10.1108/00035591111178864
Publisher
:Emerald Group Publishing Limited
Copyright © 2011, Emerald Group Publishing Limited